Mobile Radio Systems in Japan
This page on Mobile Radio Systems in Japan covers JTACS, PDC, NTT, NTACS, NEC and PHS .
Mobile Radio Standard |
TYPE | YEAR | MULTIPLE ACCESS |
FREQUENCY BAND |
MODU- LATION |
BW |
---|---|---|---|---|---|---|
JTACS | Cellular | 1988 | FDMA | 860-925 MHz |
FM | 25 kHz |
PDC | Cellular | 1993 | TDMA | 810-1501 MHz |
pi/4 DQPSK |
25 kHz |
NTT | Cellular | 1979 | FDMA | 400/800 MHz |
FM | 25 kHz |
NTACS | Cellular | 1993 | FDMA | 843-925 MHz |
FM | 12.5 KHz |
NTT | Paging | 1979 | FDMA | 280 MHz |
FSK | 12.5 KHz |
NEC | Paging | 1979 | FDMA | Many | FSK | 10 KHz |
PHS | Cordless | 1993 | TDMA | 1895-1907 MHz |
pi/4 DQPSK | 300 KHz |
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